FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

shalash shaw-lash' — a primitive root perhaps originally to intensify, i.e. treble; but apparently used only as denominative from 7969, to be (causatively, make) triplicate (by restoration, in portions, strands, days or years):--do the third time, (divide into, stay) three (days, - fold, parts, years old).

see HEBREW for 07969